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-5 (2r-0.3) + 0.5 (4r+3)=-64
We simplify the equation to the form, which is simple to understand
-5(2r-0.3) + 0.5(4r+3)=-64
Reorder the terms in parentheses
+(-10r+1.5) + 0.5*(4r+3)=-64
Remove unnecessary parentheses
-10r+1.5 + 0.5+*(+4r+3+)=-64
Reorder the terms in parentheses
-10r+1.5+(+2r+1.5)=-64
Remove unnecessary parentheses
-10r+1.5+2r+1.5=-64
We move all terms containing r to the left and all other terms to the right.
-10r+2r=-64-1.5-1.5
We simplify left and right side of the equation.
-8r=-67
We divide both sides of the equation by -8 to get r.
r=8.375
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